Temporary binder.



No, 730,544. i PATENTED' JUNE 9, 1903,.

E. L. KRAS. I TEMPGRARY BINBBR.

APPLIUATION FILED DEO. 9, 1901. lEENEWLED 00T. 6, 1902.

HO MODEL.

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- no. 730,544.Y

UNITED STATESl Patented June 9, 1908.

ERIK L. KRAGQOF CHICAGO, ILLINOIS.

TEM PORRY BINDER.

LEEC'IFECATION forming part of Letters Patent N o. 730,544, dated J une9, 1903. Application filed Decemberk 9. 1901. Renewed October 6, 1902.Serial No. 126,074. (No model.)

To @ZZ whom, t may concern.-

Be it known that I, ERIK L. KRAG, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in TemporarypBinders, ofwhich the following is a specification.

The object of this invention is the production of a temporary hindervfor loose leaves embodying the several improvements hereinafter shownand described.

In the accompanying drawings, Figure l is afront elevation of myimproved binder made up in hook form. Fig; 2 is a transverse sectionthrough the binder on dotted line 2 2 of Fig. l. Fig. Sisatransversesection through the binder on dotted line '3 3 of Fig. l. Fig. i is atransverse section Von dotted line'fl 4 of Fig. l. Fig. is alongitudinal section through the locking device, taken on dotted line 55 of Fig. l.v Fig. 6 is a detail view showing in dotted lines the formof opening for the reception of the holding-pins of the binder.

My improved binder comprises a back portion A, having two leaves'o'rmembers A and A2, pivotallyjoined together at their adjacent edges, A3being the pintle upon which said members are mounted. For the purpose ofsecuring these hinged members within suitable covers I provide thebinding-strip A4, of canvas or other suitable material, secured to therear sidesy of the hinged members by means of the plates A5, one ofwhich plates is fastened to the rear face of each of saidhinged membersby means of the rivets 'A6, extending through suitable coincidingopenings in said plates and said hinged members. The binding-strip A4may be either in one or two pieces. In the drawings it is shown in twoparts in orderthat it shall not hideother portions of the binder. Theouteredges of the hinged members' A' and Ail-are provided withnotches,and at points coincident with said notches said plates As havethe rectangular openings A1, which notches and rectangular openings areprovided to receive the curved holding-pins of the binder.

At about the middle of the back portion A the two hinged members A' andA2 are cut away in the opening As to permit the mounting of thecoil-spring A9 upon the pintle A3.

One of the ends of this coil-spring lies between the hinged member Aandtheplate A5, secured to the rear face thereof, and the .other end ofsaid spring lies between the hinged member A2 and the plate A5. Thetendency of the spring is to hold the binder closed. Theiinner edge ofihe'hinged member A' is cut away at intervals to aiord stopshouldersA10, adapted to impinge against the adjacent edge of the hinged memberA2 to limit the hinge movement of the members A' and 'A2 in'onedirection.-

At one end ot' the back portion A 0E the binder-,preferably the lowerend thereof, I provide a locking device for holding the hinged membersA( and vA2 in a normal or closed position; To provide for thisv lockingdevice, a notch A11 is formed in one end of the body portion, whichnotch extends part Way across both oi the hinged members A' and A1. Ahat spring A12, having a thumbplate A13 at its free end, is secured bymeans of the rivets A14 to the rear' side of the' body portion A. 'Thisspring,v near the thumbplate A13, carries a locking projection A15,adapted to extend through an opening A11i through the bodyportion andinto an opening A17, formed in a locking-plate A18, secured by therivets A19 tothe hinged member When the hinged members A and A2 are intheir normal position, the locking-stud A15 lies within the opening A1'Iin the locking-plate A1E1 and holds said hinged members `from movement.ATo 'open the hinge-joint,

B, are secured in the openings A" of. the

plate A5 and extend upward above the face of the hinged members A andA2, passing. through the notches inthe outer edges of'said hingedmembers and curving over the faces thereof in circles substantiallyconcentric with the pintle A3. The ends of the lockingpins B are adaptedto impinge upon the face of the back portion, thus cooperating with ICOthe stop-shoulders A10 to limit the forward movement of the hingedmembers.

The embodiment of my invention herein shown and described is susceptibleof various modications, slight changes in the form and arrangement ofparts being possible Without a departure from the spirit of myinvention. I therefore desire to have it understood that I do not limitmyself to the speciiicconstruction herein set forth. y

`I claim as my invention-` 1. In a temporary binder, in combination, twothin, fiat back members hinged together at their adjacent edges; curvedholding-pins fixed with relation to each of said members, saidholding-pins being adapted to impinge upon the face of the oppositehinged member to that with which they travel, to form a stop for themovement of the hinged members in one direction; a locking-plate fixedwith relation to one of said hinged members; and a locking-springsecured to the under side of the other of said hinged members, whichspring has a locking projection adapted to engage with saidlocking-plate to hold said hinged members in a normal position.

2. In a temporary binder, in combination, two thin, ('lat back membershinged together at their adjacent edges; curved holding-pins fixed withrelation to each of said members; a spring in said hinge; astop-shoulder on one of said members, adapted to impinge upon theadjacent edge of said other hinged member to limit the movement of saidhinged members in one direction; a locking-plate having an openingtherein, secured to one of said hinged members; and a locking-springhaving a locking projection, secured to the under side of the other ofsaid hinged members, which locking projection is adapted to engage withthe locking-opening of said locking-plate to hold said hinged members ina normal position.

3. In a temporary binder, in combination, two back members hingedtogether; a binding-strip; two plates adapted to secure saidbinding-strip to said hinged members, said plates being provided withopenings; and curved holding-pins having Shanks adapted to lie Withinthe openings in said plates.

4. In a temporary binder, in combination,

y two back members hinged together; a binding-strip; two plates forsecuring said binding-strip to said hinged members, said plates beingprovided with openings; and curved holding-pins having shanks adapted tolie within the openings in said plates, the curve of which pins issubstantially concentric to the hinge-joint between said hinged members,and the outer ends of which pins are adapted to impinge upon the face ofthe hinged member opposite to the one with which they move, in order toform a stop to limit the movement of said hinged members in onedirection.

5. In a temporary binder, in combination, two back members hingedtogether; a binding-strip; two binding-plates for securing saidbindingstrip to said hinged members, said plates being provided withopenings; curved holding-pins having shanks adapted to lie within saidopenings; a stop-shoulder formed integral with one of said hingedmembers and adapted to impinge upon the face of the other of said hingedmembers to limit the movement of said hinged members in one direction; aspring between said hinged members adapted to move them into theirnormal position; and a locking device comprising a locking-plate havingan opening therein, secured to one of said hinged members, and alooking-spring having a projection adapted to engage with the opening insaid lockingplate, which spring is secured to the other one of saidhinged members.

ERIK L. KRAG.

Witnesses:

L. L. MILLER, GEO. L. CHINDAHL.

